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Assignee73100-Setenta E Tres Mil & Cem, LDA.
InventorsMaria d'Ascencao Carvalho Fernandes De Miranda Reis, Rui Manuel Freitas Oliveira, Cristina Paula Pereira Da Cunha Rodrigues Oliveira, Maria Filomena Andrade De Freitas, Victor Manuel Delgado Alves, Joana Oliveira Pais
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This invention concerns a biopolymer consisting of a polysaccharide composed of galactose (50-90%), glucose (1-25%), mannose (1-25%) and rhamnose (0.5-20%), which may additionally contain, in trace amounts, xylose, fucose, ribose, arabinose and/or fructose. The galactose-rich polymer also contains non-saccharide components, namely, acyl groups. This invention also concerns a process for the production of the galactose-rich polymer, by microbial fermentation using glycerol or glycerol-rich substrates as carbon source, and recovery of the polymer from the culture broth. From the process for the production of the galactose-rich polymer results the co-production of intracellular biopolymers, namely, polyhydroxyalkanoates. This invention also concerns to the application of the galactose-rich polymer and the products of its partial or complete degradation and/or derivatization, namely, galacto-oligosaccharides, galactose, rhamnose and others, by physical, chemical and/or biological methods, in food, agricultural, textile and paper industries, pharmaceutical and cosmetic products, oil and metal recovery in mining industry, industrial waste treatment and wastewater treatment, among others.
A galactose-rich polymer comprising 50-90% galactose, 1-25% glucose, 1-25% mannose, and 0.5-20% rhamnose, wherein the galactose residues are in the form of pyranose rings, wherein arabinose is absent or present in trace amount, and wherein the galactose-rich polymer does not contain uronic acid wherein the molecular weight of the polymer is at least 106 Da.
Dependencies are inferred from the claim text.